dovecot replication (active-active) - server specs
lists at wildgooses.com
Sat Oct 11 17:09:52 UTC 2014
> we've got 2 new fileservers, they have each SSD HDDs for "new-storage"
> and 7200rpm SATA HDDs on RAID 5 with 10 TB for "alt-storage"
Friends don't let friends use Raid5...
(Use Raid6 or something else...)
Note, a common counter argument is that someone has "full backups and
can survive a rebuild, so the RAID5 is really just to increase uptime".
I suggest you do the sums on silent corruption and compare with your
data size. Bit rot seems to be an observable problem now. Scrub your
arrays regularly and where possible use data integrity checks at higher
levels (not much for linux, but ZFS offers this for other OSs)
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